Italy vs Italy — 1963 vs 1968
| 2500 GT Allemano Coupe | Islero | |
|---|---|---|
| Horsepower | 245 hp | 325 hp |
| Torque | 188 lb-ft | 288 lb-ft |
| Engine Size | 2,467 cc | 3,929 cc |
| 0-60 mph | 6.5 sec | 6.4 sec |
| Top Speed | 155 mph | 154 mph |
| ¼ Mile | 14.8 sec | 14.7 sec |
| Weight | 2,072 lbs | 3,373 lbs |
| Wheelbase | 2,350 mm | 2,550 mm |
| Length | 4,090 mm | 4,580 mm |
| Units Produced | 12 | 225 |
| Original MSRP | — | $12,900 |
| Value (Excellent) | $1,500,000 | $450,000 |
| Collectibility | 10/10 | 8/10 |
| Rarity | 10/10 | 9/10 |
It's a closely fought contest. The 1963 ATS 2500 GT Allemano Coupe brings higher top speed, lighter weight, greater rarity to the table, and the 1968 Lamborghini Islero answers with more power, quicker acceleration, better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
In the world of Grand Tourer cars, few comparisons generate as much discussion as the 1963 ATS 2500 GT Allemano Coupe versus the 1968 Lamborghini Islero. Both hail from Muscle era and represent the pinnacle of their respective manufacturers' ambitions. The 1968 Lamborghini Islero holds a clear advantage in raw power with 325 hp compared to 245 hp, a 80-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the ATS 2500 GT uses a V8 DOHC displacing 2,467 cc, while the Lamborghini Islero relies on a V12 DOHC with 3,929 cc. In the sprint to 60 mph, the 1968 Lamborghini Islero edges ahead at 6.4 seconds versus 6.5 seconds. The ATS 2500 GT carries a weight advantage, tipping the scales 1301 lbs lighter. Rarity plays a significant role here — with only 12 units built, the 1963 ATS 2500 GT Allemano Coupe is considerably scarcer than the Lamborghini Islero's 225 examples. From a collectibility standpoint, the 1963 ATS 2500 GT Allemano Coupe rates higher among enthusiasts and auction houses.